Circuit Breakers
Our selection of circuit breakers spans a wide range of applications, from heavy-duty air circuit breakers (ACBs) to compact miniature circuit breakers (MCBs). We offer leading brands like Eaton, Siemens, and Square D, known for their reliability and performance. Whatever your power management needs, you can find the perfect solution here at ARCA Supply.
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Din Rail Mounted Circuit Breakers
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Main Breakers
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Miniature Circuit Breakers (MCBs)
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Molded Case Breakers (MCCBs)
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Motor Circuit Protector (MCPs)
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Lug Terminal Kits
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Auxiliary, Shunt, Trip Units and UVRs
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Circuit Breaker Accessories
- Product
- Qty in Cart
- Price
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Contact Us For Quote
Square D QOU110 Miniature Circuit Breakers (MCBs)
MSRP $40.20Surplus $19.07SKU: C15-6671 Brand: Square D MPN: QOU110 UPC: Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In. Product...- SKU:
- C15-6671
- Current Rating:
- 10 A
- Series:
- QOU
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Number of Poles:
- 1
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Terminal Type:
- Slotted Box Lug Line/Load
- Data Sheet:
- SchneiderElectric_21446_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Used On:
- OEM
- Type:
- Miniature, Standard
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 10 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Interrupting Rating:
- 10 kA
- TS PIK:
- 21356075
- Approval:
- UL, CSA
MSRP $40.20Surplus $19.07 -
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Square D QOU1100 Molded Case Breakers (MCCBs)
MSRP $117.87Surplus $31.82SKU: C15-17938 Brand: Square D MPN: QOU1100 UPC: 78590147854 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17938
- Type:
- Common Trip, Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Interrupting Rating:
- 10 kA
- Number of Poles:
- 1
- Current Rating:
- 100 A
- Data Sheet:
- SchneiderElectric_21447_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Series:
- QOU
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Used On:
- OEM
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 100 A, 10 kA Interrupt, 1-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Approval:
- UL, CSA
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
MSRP $117.87Surplus $31.82 -
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Square D QOU115VH Molded Case Breakers (MCCBs)
MSRP $102.00Surplus $27.54SKU: C15-17942 Brand: Square D MPN: QOU115VH UPC: 78590163120 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17942
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Interrupting Rating:
- 22 kA
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Data Sheet:
- SchneiderElectric_21464_1_2_DATA.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Short Description:
- 120/240 VAC, 15 A, 22 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Series:
- QOU
- Current Rating:
- 15 A
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Approval:
- UL, CSA
- Number of Poles:
- 1
- Used On:
- OEM
- Type:
- Miniature, Standard
- Terminal Type:
- Slotted Box Lug Line/Load
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Mounting:
- DIN Rail/Unit/Surface/Flush
MSRP $102.00Surplus $27.54 -
Square D QOU120 Miniature Circuit Breakers (MCBs)
MSRP $40.20Surplus $24.21Square D QOU120 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6482 Brand: Square D MPN: QOU120 UPC: 78590141853 Shipping Weight: 0.35 lbs. Shipping Height: 1.00 In. Shipping...- SKU:
- C15-6482
- TS PIK:
- 21032857
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Type:
- Miniature, Standard
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Data Sheet:
- SchneiderElectric_21465_1_2_DATA.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Interrupting Rating:
- 10 kA
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Number of Poles:
- 1
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Current Rating:
- 20 A
- Used On:
- OEM
- Terminal Type:
- Slotted Box Lug Line/Load
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Series:
- QOU
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Country of Origin:
- United States
- Approval:
- UL, CSA
MSRP $40.20Surplus $24.21 -
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Square D QOU1201021 Molded Case Breakers (MCCBs)
MSRP $396.00Surplus $106.92SKU: C15-17943 Brand: Square D MPN: QOU1201021 UPC: 78590151010 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17943
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 20 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Slotted Box Lug Line/Load Terminal, Standard, Shunt Trip, Miniature Circuit Breaker
- Current Rating:
- 20 A
- Number of Poles:
- 1
- Series:
- QOU
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Interrupting Rating:
- 10 kA
- Type:
- Miniature, Standard, Shunt Trip
- Terminal Type:
- Slotted Box Lug Line/Load
- Size:
- 1.5 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21466_1_2_DATA.pdf
- Used On:
- OEM
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
MSRP $396.00Surplus $106.92 -
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Square D QOU120VH Molded Case Breakers (MCCBs)
MSRP $190.00Surplus $51.30SKU: C15-17945 Brand: Square D MPN: QOU120VH UPC: 78590155952 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17945
- Current Rating:
- 20 A
- Series:
- QOU
- Short Description:
- 120/240 VAC, 20 A, 22 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Data Sheet:
- SchneiderElectric_21476_1_2_DATA.pdf
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- CAD Drawings:
- SchneiderElectric_30267_1_CAD.pdf
- Used On:
- OEM
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Approval:
- UL, CSA
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Installation/Operator:
- SchneiderElectric-SquareD_02170_INST.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Type:
- Miniature, Standard
- Number of Poles:
- 1
- Interrupting Rating:
- 22 kA
- Terminal Type:
- Slotted Box Lug Line/Load
MSRP $190.00Surplus $51.30 -
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Square D QOU130VH Molded Case Breakers (MCCBs)
MSRP $94.00Surplus $25.38SKU: C15-17946 Brand: Square D MPN: QOU130VH UPC: 78590147066 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17946
- Series:
- QOU
- Interrupting Rating:
- 22 kA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Short Description:
- 120/240 VAC, 30 A, 22 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load, Standard, Miniature Circuit Breaker
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Number of Poles:
- 1
- Type:
- Miniature, Standard
- Voltage Rating:
- 120/240 VAC 50/60 Hertz
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- CAD Drawings:
- SchneiderElectric_30267_1_CAD.pdf
- Used On:
- OEM
- Approval:
- UL, CSA
- Current Rating:
- 30 A
- Terminal Type:
- Slotted Box Lug Line/Load
- Data Sheet:
- SchneiderElectric_21487_1_2_DATA.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Mounting:
- DIN Rail/Unit/Surface/Flush
MSRP $94.00Surplus $25.38 -
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Square D QOU135 Miniature Circuit Breakers (MCBs)
MSRP $32.56Surplus $25.00Square D QOU135 Miniature Circuit Breakers (MCBs)​ ARCA SKU: C15-6485 Brand: Square D MPN: QOU135 UPC: 78590148909 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping...- SKU:
- C15-6485
- TS PIK:
- 111089398
- Type:
- Miniature, Standard
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 35 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Terminal Type:
- Slotted Box Lug Line/Load
- Current Rating:
- 35 A
- Number of Poles:
- 1
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
- Interrupting Rating:
- 10 kA
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Data Sheet:
- SchneiderElectric_21488_1_2_DATA.pdf
- CAD Drawings:
- SchneiderElectric_30265_1_CAD.pdf
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Used On:
- OEM
- Approval:
- UL, CSA
MSRP $32.56Surplus $25.00 -
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Square D QOU170 Molded Case Breakers (MCCBs)
MSRP $119.70Surplus $40.60SKU: C15-10923 Brand: Square D MPN: QOU170 UPC: 78590150986 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-10923
- TS PIK:
- 111089756
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Number of Poles:
- 1
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.05 Inch Height
- Approval:
- UL, CSA
- Wire Size:
- 14 to 2 AWG (Copper/Aluminum)
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Data Sheet:
- SchneiderElectric_21515_1_2_DATA.pdf
- Interrupting Rating:
- 10 kA
- Terminal Type:
- Slotted Box Lug Line/Load
- Used On:
- OEM
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Current Rating:
- 70 A
- Type:
- Miniature, Standard
- Catalog:
- SchneiderElectric-SquareD_32357_7_19_7_21_CAT.pdf
- Short Description:
- 120/240 VAC 50/60 Hz, 48 VDC, 70 A, 10 kA Interrupt, 1-Pole, 14 to 2 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Series:
- QOU
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 48 VDC
MSRP $119.70Surplus $40.60 -
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Square D QOU180 Molded Case Breakers (MCCBs)
MSRP $282.00Surplus $76.14SKU: C15-17948 Brand: Square D MPN: QOU180 UPC: 78590117590 Shipping Weight: 0.00 lbs. Shipping Height: 0.00 In. Shipping Length: 0.00 In. Shipping Width: 0.00 In...- SKU:
- C15-17948
- Type:
- Common Trip, Miniature, Standard
- Number of Poles:
- 1
- Series:
- QOU
- Short Description:
- 120/240 VAC 50/60 Hz, 60 VDC, 80 A, 10 kA Interrupt, 1-Pole, 12 to 2/0 AWG Copper/Aluminum, Unit Mount, Slotted Box Lug Line/Load Terminal, Standard, Miniature Circuit Breaker
- Mounting:
- DIN Rail/Unit/Surface/Flush
- Current Rating:
- 80 A
- Installation/Operator:
- SchneiderElectric-SquareD_02171_INST.pdf
- Size:
- 0.75 Inch Width x 2.95 Inch Depth x 4.45 Inch Height
- Approval:
- UL, CSA
- CAD Drawings:
- SchneiderElectric_30266_1_CAD.pdf
- Interrupting Rating:
- 10 kA
- Wire Size:
- 12 to 2/0 AWG (Copper/Aluminum)
- Terminal Type:
- Slotted Box Lug Line/Load
- Data Sheet:
- SchneiderElectric_21516_1_2_DATA.pdf
- Voltage Rating:
- 120/240 VAC 50/60 Hertz, 60 VDC
- Catalog:
- SchneiderElectric-SquareD_32357_7_20_7_21_CAT.pdf
- Used On:
- OEM
MSRP $282.00Surplus $76.14
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